Slope Crack Propagation Law and Numerical Simulation of Expansive Soil under Wetting-Drying Cycles

Article Engineering, Geological

Numerical Simulation of Desiccation Cracking in Clayey Soil Using a Multifield Coupling Discrete-Element Model

Tian-Cheng Le et al.

Summary: This research proposed a multifield coupling discrete-element model to study desiccation cracking in clayey soil. The model was validated through simulation of crack network development. The study found that layer thickness, evaporation intensity, soil-base interaction, and compressive strength have significant impacts on crack pattern.

JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING (2022)

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Article Engineering, Environmental

Soil-rock mixture slope stability analysis by microtremor survey and discrete element method

Wenwei Gao et al.

Summary: The study focuses on the research of S-RM landslides through the use of microtremor survey method to detect slopes and the discrete element method to analyze the sliding process. It accurately obtains the rock block structure and distribution data, revealing the complex deformation and failure mechanism. The results of this study are of great reference value for landslide prevention and disaster reduction.

BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT (2022)

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Article Construction & Building Technology

Characterization of sustainable mortar containing high-quality recycled manufactured sand crushed from recycled coarse aggregate

Zhiming Ma et al.

Summary: This study proposes an innovative method to crush recycled coarse aggregate into recycled manufactured sand, which can be used to prepare high-quality recycled mortar with high strength and good durability. The recycled manufactured sand has superior properties compared to recycled fine aggregate, and can significantly improve the performance of recycled mortar.

CEMENT & CONCRETE COMPOSITES (2022)

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Article Geosciences, Multidisciplinary

Tailings Dam Break: The Influence of Slurry with Different Concentrations Downstream

Xuanyi Chen et al.

Summary: The concentration of slurry significantly influences the flow characteristics, with impact force and velocity increasing as concentration decreases, and flow height increasing as concentration decreases. This study provides insights into how slurry concentration affects flow characteristics, which can guide downstream evacuation planning.

FRONTIERS IN EARTH SCIENCE (2021)

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Article Environmental Sciences

Study on Hydraulic Incipient Motion Model of Reinforced Tailings

Kehui Liu et al.

Summary: This study focuses on the microscopic characteristics of hydraulic erosion of reinforced tailings dams, revealing the relationship between different reinforcement spacing and the critical incipient velocity of tailings particles. The results show that smaller reinforcement spacing leads to a larger incipient velocity of the reinforced tailings sample. A reinforcement coefficient is introduced to establish the incipient velocity formula of reinforced tailings particles, providing theoretical support for studying the hydraulic erosion rate of a reinforced tailings dam.

WATER (2021)

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Article Materials Science, Multidisciplinary

Rainfall Erosion Predictions for Artificial High-Filled Embankment with Reinforcement

Shangwei Wu et al.

Summary: This paper deeply analyzes the impact of rainfall intensity, slope, and reinforced layers on the erosion and destruction of artificial high embankments, and establishes a rainfall erosion prediction model through model testing. The results show the influence of different factors on embankment erosion.

ADVANCES IN MATERIALS SCIENCE AND ENGINEERING (2021)

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Article Engineering, Geological

Determination of volumetric shrinkage of an expansive soil using digital camera images

M. Julina et al.

Summary: Accurate determination of shrunken soil specimen volume is crucial for understanding the shrinkage behavior of compacted expansive soils. Digital camera images have been successfully utilized in studying crack patterns in reconstituted soils. Simple methods based on digital camera images and vernier calliper were proposed for measuring shrunken soil specimen volume.

INTERNATIONAL JOURNAL OF GEOTECHNICAL ENGINEERING (2021)

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Article Metallurgy & Metallurgical Engineering